The basic principle of ultrasonic graphene preparation equipment:
The application of Ultrasonic Graphene Preparation Equipment is mainly in the solvothermal intercalation method and the redox method. These two methods are simple and easy to operate, and the cost is lower than other preparation methods. It is mainly used in the large-scale preparation of nano-scale graphene powder in China.
Production methods：
Due to the cavitation effect of the ultrasonic wave in the liquid, physical phenomena such as micro-jet and vibration are formed, and on the microscopic level, the suspended particles play a role of high-speed stirring, crushing, separating and dispersing in the liquid. Simply put, ultrasonic waves can accelerate the reaction and catalyze the reaction in the preparation of graphene.
In the solvothermal intercalation method, the graphite powder and the intercalation agent are uniformly mixed in an organic solvent in a certain ratio, and then peeled off by an ultrasonic water bath for a certain period of time, and then subjected to centrifugal separation treatment, and filtered through a microporous membrane. After that, a graphene material can be obtained.
The method of redox is to add graphite oxide powder to deionized water, and obtain a graphene oxide dispersion of graphene oxide in deionized water by ultrasonic vibration, and add a caffeic acid powder in the dispersion to obtain graphite. The olefin solution is also collected by filtration through a microporous membrane and dried under vacuum to finally obtain graphene.
Part of the special ultrasonic disperser for graphene:
1. Ultrasonic vibration source (drive power supply): converts 50-60 Hz mains into a high-power high-frequency (15 kHz-100 kHz) power supply, which is supplied to the transducer.
2. transducer (transducer): converts high-frequency electrical energy into mechanical vibrational energy.
3. A horn: The transducer and the tool head are coupled and fixed, and the amplitude of the transducer is amplified and transmitted to the tool head.
4. Tool head (introduction rod): transmits mechanical energy and pressure to the work, and also has the function of amplitude amplification.
Industrial grade ultrasonic graphene production equipment parameters:
-Ultrasonic experimental grade dispersion equipment: ultrasonic host + ultrasonic drive power + experimental mount
-Ultrasonic industrial grade dispersion equipment: 3000W ultrasonic vibration rod + ultrasonic CNC drive power supply
-Pilot machine: ultrasonic industrial grade dispersion equipment + cycle reactor (including cooling jacket, feeding port, feed pump, base bracket)
-Production line: ultrasonic industrial grade dispersion equipment + power supply cabinet + reaction kettle (including cooling jacket) + fixed bracket (including sound insulation cotton) + flow meter + variable frequency pump
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